CWI was approached by the shareholder of Edevu hydropower plant to conduct a welding and quality improvement programme to improve the welding practice and quality for the spiral case. CWI provided an experienced welding engineer qualified to certified international welding engineer and chartered quality professional to perform the welding and quality improvement programme through a three-week support at the project site.
A two-stages programme was designed by the welding engineer. The stages of the programme are:
Stage 1: Surveillance, planning and development
Stage 2: Implementation, coaching and improvement
The outcomes of the daily surveillance showed that the welding practice and welder compliance to welding procedure have been improved and no incorrect practice was adopted again. The inspection results showed that 99.95% of the weld length were accepted and the hydrostatic test was accepted at the first attempt.
The outcomes of this improvement programme showed that the combined method of welding and quality professionals adopted by CWI have resolved the welding quality and integrity concerns raised by the shareholder of Edevu hydropower plant and improved the work paradigm of the spiral case welding and inspection teams.
The details of this case study can be obtained from https://www.cwi-services.com/wp-content/uploads/2022/08/Case-study-012-Welding-and-quality-professions-in-one-A-case-for-spiral-case-welding-improvement.pdf
